body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Roboto', 'Oxygen',
    'Ubuntu', 'Cantarell', 'Fira Sans', 'Droid Sans', 'Helvetica Neue',
    sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

code {
  font-family: source-code-pro, Menlo, Monaco, Consolas, 'Courier New', monospace;
}

html {
  box-sizing: border-box;
  -moz-box-sizing: border-box;
}

*,
::before,
::after {
  margin: 0;
  padding: 0;
  box-sizing: inherit;
  -webkit-box-sizing: inherit;
  -webkit-tap-highlight-color: transparent;
  /* 清除点击高亮效果 */
  -webkit-touch-callout: none;
  /*系统默认菜单被禁用*/
  -webkit-user-select: none;
  /*webkit浏览器*/
  -khtml-user-select: none;
  /*早期浏览器*/
  -moz-user-select: none;
  /*火狐*/
  -ms-user-select: none;
  /*IE10*/
  user-select: none;
}

a {
  text-decoration: none;
  color: #333;
}

a:hover,
a:link,
a:visited,
a:active {
  text-decoration: none;
}

ol,
ul {
  list-style: none;
}

input,
textarea {
  outline: none;
  border: none;
  resize: none;
  -webkit-appearance: none;
  -webkit-user-select: auto;
  /*webkit浏览器*/
  user-select: auto;
}

body {
  font-size: 14px;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

#root {
  width: 100%;
  height: 100%;
  position: absolute;
}